<?php // $Id: view.php,v 1.53.2.2 2007/10/17 14:35:34 tjhunt Exp $

	require_once("../../config.php");
	require_once("lib.php");

	$id = required_param('id', PARAM_INT);	// Course Module ID

	if (! $cm = get_coursemodule_from_id('survey', $id)) {
		error("Course Module ID was incorrect");
	}

	if (! $course = get_record("course", "id", $cm->course)) {
		error("Course is misconfigured");
	}

	require_login($course->id, false, $cm);
	
	$context = get_context_instance(CONTEXT_MODULE, $cm->id);

	require_capability('mod/survey:participate', $context);

	if (! $survey = get_record("survey", "id", $cm->instance)) {
		error("Survey ID was incorrect");
	}
	$trimmedintro = trim($survey->intro);
	if (empty($trimmedintro)) {
		$tempo = get_field("survey", "intro", "id", $survey->template);
		$survey->intro = get_string($tempo, "survey");
	}

	if (! $template = get_record("survey", "id", $survey->template)) {
		error("Template ID was incorrect");
	}

	$showscales = ($template->name != 'ciqname');

	$strsurvey = get_string("modulename", "survey");
	$navigation = build_navigation('', $cm);
	print_header_simple(format_string($survey->name), "", $navigation, "", "", true,
				  update_module_button($cm->id, $course->id, $strsurvey), navmenu($course, $cm));

/// Check to see if groups are being used in this survey
	if ($groupmode = groups_get_activity_groupmode($cm)) {   // Groups are being used
		$currentgroup = groups_get_activity_group($cm);
	} else {
		$currentgroup = 0;
	}
	$groupingid = $cm->groupingid;
	
	if (has_capability('mod/survey:readresponses', $context) or ($groupmode == VISIBLEGROUPS)) {	
		$currentgroup = 0;
	}
	
	if (has_capability('mod/survey:readresponses', $context)) {
		$numusers = survey_count_responses($survey->id, $currentgroup, $groupingid);
		echo "<div class=\"reportlink\"><a href=\"report.php?id=$cm->id\">".
			  get_string("viewsurveyresponses", "survey", $numusers)."</a></div>";
	} else if (!$cm->visible) {
		notice(get_string("activityiscurrentlyhidden"));
	}

	if (isguest()) {
		notify(get_string("guestsnotallowed", "survey"));
	}


//  Check the survey hasn't already been filled out.

	if (survey_already_done($survey->id, $USER->id)) {

		add_to_log($course->id, "survey", "view graph", "view.php?id=$cm->id", $survey->id, $cm->id);
		$numusers = survey_count_responses($survey->id, $currentgroup, $groupingid);

		if ($showscales) {
			print_heading(get_string("surveycompleted", "survey"));
			print_heading(get_string("peoplecompleted", "survey", $numusers));
			echo '<div class="resultgraph">';
			survey_print_graph("id=$cm->id&amp;sid=$USER->id&amp;group=$currentgroup&amp;type=student.png");
			echo '</div>';

		} else {

			print_box(format_text($survey->intro), 'generalbox', 'intro');
			print_spacer(30);

			$questions = get_records_list("survey_questions", "id", $survey->questions);
			$questionorder = explode(",", $survey->questions);
			foreach ($questionorder as $key => $val) {
				$question = $questions[$val];
				if ($question->type == 0 or $question->type == 1) {
					if ($answer = survey_get_user_answer($survey->id, $question->id, $USER->id)) {
						$table = NULL;
						$table->head = array(get_string($question->text, "survey"));
						$table->align = array ("left");
						$table->data[] = array(s($answer->answer1));//no html here, just plain text
						print_table($table);
						print_spacer(30);
					}
				}
			}
		}

		print_footer($course);
		exit;
	}

//  Start the survey form
	add_to_log($course->id, "survey", "view form", "view.php?id=$cm->id", $survey->id, $cm->id);

	echo "<form method=\"post\" action=\"save.php\" id=\"surveyform\">";
	echo '<div>';
	echo "<input type=\"hidden\" name=\"id\" value=\"$id\" />";

	print_simple_box(format_text($survey->intro), 'center', '70%', '', 5, 'generalbox', 'intro');

// Get all the major questions and their proper order
	if (! $questions = get_records_list("survey_questions", "id", $survey->questions)) {
		error("Couldn't find any questions in this survey!!");
	}
	$questionorder = explode( ",", $survey->questions);

// Cycle through all the questions in order and print them

	$qnum = 0;
	foreach ($questionorder as $key => $val) {
		$question = $questions["$val"];
		$question->id = $val;

		if ($question->type >= 0) {

			if ($question->text) {
				$question->text = get_string($question->text, "survey");
			}

			if ($question->shorttext) {
				$question->shorttext = get_string($question->shorttext, "survey");
			}

			if ($question->intro) {
				$question->intro = get_string($question->intro, "survey");
			}

			if ($question->options) {
				$question->options = get_string($question->options, "survey");
			}

			if ($question->multi) {
				survey_print_multi($question);
			} else {
				survey_print_single($question);
			}
		}
	}

	if (isguest()) {
		echo '</div>';  
		echo "</form>";
		print_footer($course);
		exit;
	}

?>

<br />
<script type="text/javascript">
<!--
function checkform() {

	var error=false;

	with (document.getElementById('surveyform')) {
	<?php
	   if (!empty($checklist)) {
		   foreach ($checklist as $question => $default) {
			   echo "  if (".$question."[".$default."].checked) error=true;\n";
		   }
	   }
	?>
	}

	if (error) {
		alert("<?php print_string("questionsnotanswered", "survey") ?>");
	} else {
		document.getElementById('surveyform').submit();
	}
}

<?php echo "document.write('<input type=\"button\" value=\"".get_string("clicktocontinuecheck", "survey")."\" onClick=\"checkform()\" />');";  ?>

// END -->	
</script>

<noscript>
	<!-- Without Javascript, no checking is done -->
	<div>
	<input type="submit" value="<?php  get_string("clicktocontinue", "survey") ?>" />
	</div>
</noscript>

<?php
   echo '</div>';
   echo "</form>";

   print_footer($course);

?>
